| 摘要 |
<p>There is disclosed a fluid-assisted electromagnetic control device. It comprises a working chamber with an element movable as a function of the pressure in this chamber, an inlet duct and an outlet duct for fluid under pressure and valves controlled by an electromagnetic device to produce pressurization and exhaust respectively of this chamber to control displacements of the mobile element. The latter carries first and second nozzles associated with the fluid inlet and exhaust ducts respectively, such nozzles leading into a space communicating with or forming part of the working chamber. An obturating member connected to a mobile armature of the electromagnetic device is arranged to obturate the first or the second nozzle according to the direction of displacement of the mobile armature. The latter has a part which comes to bear at the latest at the end of its displacement in either direction against the mobile element.</p> |
